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2. Bi-wiring - Wikipedia

   en.wikipedia.org/wiki/Bi-wiring

   Amplifier and loudspeaker with two elements and crossover networks. Top: normal connection. Bottom: bi-wiring. Loudspeaker bi-wired using banana plugs. Bi-wiring is a means of connecting a loudspeaker to an audio amplifier, primarily used in hi-fi systems. Normally, there is one pair of connectors on a loudspeaker and a single cable (two ...

3. Bi-amping and tri-amping - Wikipedia

   en.wikipedia.org/wiki/Bi-amping_and_tri-amping

   A speaker system has to be wired to accommodate either configuration, typically with two sets of binding posts, one set for the bass and one set for the mid-highs. A single amplifier can usually power a woofer and a tweeter only through a post-amplifier crossover filter, which protects each driver from signals outside its frequency range.

4. Public address system - Wikipedia

   en.wikipedia.org/wiki/Public_address_system

   At the transmission end, a PSTN Telephone, mobile phone, VOIP phone or any other communication device that can access and make audio calls to a GSM based mobile SIM card can communicate with it. At the receiving end, a GSM transceiver receives these network transmissions and reproduce the analogue audio signal via a Power Amplifier and speaker.

5. Audio crossover - Wikipedia

   en.wikipedia.org/wiki/Audio_crossover

   the power amplifiers are directly connected to the speaker drivers, thereby maximizing amplifier damping control of the speaker voice coil, reducing consequences of dynamic changes in driver electrical characteristics, all of which are likely to improve the transient response of the system; reduction in power amplifier output requirement.

6. Speaker wire - Wikipedia

   en.wikipedia.org/wiki/Speaker_wire

   Speaker wire is a passive electrical component described by its electrical impedance, Z.The impedance can be broken up into three properties which determine its performance: the real part of the impedance, or the resistance, and the imaginary component of the impedance: capacitance or inductance.

7. Bridged and paralleled amplifiers - Wikipedia

   en.wikipedia.org/wiki/Bridged_and_paralleled...

   A bridge-parallel amplifier topology is a hierarchical combination of the bridged and paralleled amplifier topologies, with at least four single-ended channels needed to produce one bridge-parallel channel. The two topologies complement each other in that the bridging allows for higher voltage output and the paralleling provides the current ...

8. Corgis Get ‘Jobs’ at the Fire Department and Funny Chaos Ensues

   www.aol.com/corgis-jobs-fire-department-funny...

   I laughed at Maxine's dad's caption when he said, "They lasted one day", and included the eye roll emoji. I'm willing to bet that the firefighters would let them stay on the crew though, I think ...

9. Automatic gain control - Wikipedia

   en.wikipedia.org/wiki/Automatic_gain_control

   Schematic of an AGC used in the analog telephone network; the feedback from output level to gain is effected via a Vactrol resistive opto-isolator.. Automatic gain control (AGC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers, the purpose of which is to maintain a suitable signal amplitude at its output, despite variation of the signal amplitude at the input.